Unfortunately I didn't take the advice of using two rooters and checking the dryness on the second because I thought it was too late to do it since I already had the seed sprouting in it.

That was a BAD decision. I should have just had the second as a relative dryness indicator. Also, since the top of the rapid rooter tray was was off due to the early stretching, and with the fan blowing around, it speed dried the rooter, killing the plant in the process.

Now I got a taller lid for the tray and with lower lights, will attempt it again. Also the water level in the tray had to be above the ridges not just below.